发明名称 |
Surface treating agent for copper or copper alloy |
摘要 |
A surface treating agent for copper and a copper alloy, comprising an aqueous solution containing an imidazole compound or a benzimidazole compound, a complexon, and iron ions. The agent forms a chemical film selectively on the surface of copper while forming no film on other metals. |
申请公布号 |
EP0791671(A1) |
申请公布日期 |
1997.08.27 |
申请号 |
EP19970102981 |
申请日期 |
1997.02.24 |
申请人 |
SHIKOKU CHEMICALS CORPORATION |
发明人 |
HIRAO, HIROHIKO;KIKUKAWA, YOSHIMASA |
分类号 |
C23C22/52;C23F11/14;H05K3/28 |
主分类号 |
C23C22/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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